.banner{
	z-index: 99;
	padding-top: 4rem;
	width: 100%;
	height: 9.4rem;
	background: #ccc;
	position: relative;

}
.banner img{
	width: auto;
	height: 9.4rem;
}
/*.banner .banner-img{
	display: flex;
}
.banner .banner-img .banner-item{

}
.banner .banner-img .banner-item img{
	width: auto;
	height: 9.4rem;
}
.banner .banner-btn{
	width: 100%;
	height: 0.65rem;
	background: yellow;
	position: absolute;
	bottom: 10px;
}
.banner .banner-btn .btn-item{

}*/